Description
Data from peer-reviewed publication: G. Zhao et al., Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity, Optics Letters. Frequency-stabilized mid-infrared lasers are valuable tools for precision molecular spectroscopy. However, their implementation remains limited by complicated stabilization schemes. Here we achieve optical self-locking of a quantum cascade laser to the resonant leak-out field of a highly mode-matched two-mirror cavity. The result is a simple approach to achieving ultra-pure frequencies from high-powered mid-infrared lasers. For short time scales (<0.1 ms), we report a linewidth reduction factor of 3×10^(-6) to a linewidth of 12 Hz. Furthermore, we demonstrate two-photon cavity-enhanced absorption spectroscopy of an N2O overtone transition near a wavelength of 4.53 um.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Fig. 1: Conceptualization and model for a quantum cascade laser coupled to a Fabry-Perot cavity by weak optical feedback. | XLS | Fleisher_stableQCL_rev1_fig1_data.xls | Open resource |
| SHA256 File for Fig. 1: Conceptualization and model for a quantum cascade laser coupled to a Fabry-Perot cavity by weak optical feedback. | Text | Open resource | |
| Fig. 4: QCL line width analysis - power spectral densities | CSV | Fleisher_stableQCL_rev1_fig4_data.xls | Open resource |
| SHA256 File for Fig. 4: QCL line width analysis - power spectral densities | Text | Open resource | |
| Fig. 5: Two-photon absorption spectroscopy of N2O in the mid-infrared | CSV | Fleisher_stableQCL_rev1_fig5_data.xls | Open resource |
| SHA256 File for Fig. 5: Two-photon absorption spectroscopy of N2O in the mid-infrared | Text | Open resource | |
| Read me file | Text | readme.txt | Open resource |
| SHA256 File for Read me file | Text | Open resource | |
| DOI Access for Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity | Unknown | Open resource |